Upsurge in rocket launches could impact the ozone layer

University of Canterbury (UC) researchers have summarized the threats that future rocket launches would pose to Earth's protective ozone layer, in a new review article published in the Journal of the Royal Society of New Zealand. | Continue reading


@phys.org | 23 hours ago

AI is helping us search for intelligent alien life—and we've found 8 strange new signals

Some 540 million years ago, diverse life forms suddenly began to emerge from the muddy ocean floors of planet Earth. This period is known as the Cambrian Explosion, and these aquatic critters are our ancient ancestors. | Continue reading


@phys.org | 23 hours ago

Dolphins, humans both benefit from fishing collaboration

A fishing community in southern Brazil has an unusual ally: wild dolphins. | Continue reading


@phys.org | 1 day ago

Children lost one-third of a year's learning to COVID, new study shows

Children's learning progress has slowed substantially during the pandemic, roughly equating to a loss of around 35% of the typical learning in a school year, according to a new study. | Continue reading


@phys.org | 1 day ago

Thirteen dead as Chile forest fires provoke state of disaster

Chile has declared a state of disaster in several central-southern regions after a devastating heat wave sparked forest fires that left at least 13 people dead, authorities said Friday. | Continue reading


@phys.org | 1 day ago

Endangered monarch butterflies face perilous storm

As devastating storms pounded California, nature lovers feared for endangered monarch butterflies that winter there as part of a seemingly magical migration pattern. | Continue reading


@phys.org | 1 day ago

Protecting 30 percent of oceans a huge challenge for the planet

How do we go from protecting eight percent of marine areas to 30 percent in less than 10 years? This question is at the heart of a global forum in Canada this weekend aiming to save marine ecosystems under threat from overfishing, pollution and climate change. | Continue reading


@phys.org | 1 day ago

Famed LA mountain lion's death shines light on tribal talks

The life of Los Angeles' most famous mountain lion followed a path known only to the biggest of Hollywood stars: Discovered on-camera in 2012, the cougar adopted a stage name and enjoyed a decade of celebrity status before his tragic death late last year. | Continue reading


@phys.org | 1 day ago

Commonly used police diversity training unlikely to change officers' behavior, study finds

Tyre Nichols, a 29-year-old Black man who died after a confrontation with police during a traffic stop earlier this month in Memphis, has become the latest face in a racial justice and police reform movement fueled by a string of similar cases in which Black men have died from in … | Continue reading


@phys.org | 1 day ago

New England knows winter, but why so dangerously cold?

New Englanders are used to cold temperatures, but a combination of extreme cold accompanied by powerful winds is downright dangerous, and enough to send even bundled-up skiers scampering indoors. | Continue reading


@phys.org | 1 day ago

Jupiter's moon count jumps to 92, most in solar system

Astronomers have discovered 12 new moons around Jupiter, putting the total count at a record-breaking 92. | Continue reading


@phys.org | 1 day ago

When you buy at a discount online, are you really paying more?

A study published in a recent issue of INFORMS journal Marketing Science has found evidence of a questionable practice that tricks consumers into thinking they are getting a discount when they are actually paying more. | Continue reading


@phys.org | 1 day ago

Ice cores show even dormant volcanoes leak abundant sulfur into the atmosphere

Volcanoes draw plenty of attention when they erupt. But new research led by the University of Washington shows that volcanoes leak a surprisingly high amount of their atmosphere- and climate-changing gases in their quiet phases. A Greenland ice core shows that volcanoes quietly r … | Continue reading


@phys.org | 1 day ago

Experiments to complete scientific understanding of how reduced gravity affects boiling and condensation

With temperatures on the moon ranging from minus 410 to a scorching 250 degrees Fahrenheit, it's an understatement to say that humans will need habitats with heat and air conditioning to survive there long term. | Continue reading


@phys.org | 1 day ago

The first stars may have held up to 100,000 times the mass of the sun

The universe was simply different when it was younger. Recently astronomers have discovered that complex physics in the young cosmos may have led to the development of supermassive stars, each one containing up to 100,000 times the mass of the sun. | Continue reading


@phys.org | 1 day ago

Analyzing the relationship between olive roots and Verticillium wilt

A new method developed at the University of Córdoba has tested how substances secreted by the roots of olive trees impact infection by the Verticillium dahliae fungus, and studied its effects on different varieties of olive trees | Continue reading


@phys.org | 1 day ago

Research measures political polarization in Europe through parties' Facebook pages

Scientists from the Universidad Carlos III de Madrid (UC3M) have designed a new methodology to analyze political polarization through the Facebook posts of European parties. They have also created a website openly displaying these results, where it is possible to make comparisons … | Continue reading


@phys.org | 1 day ago

Two/quasi-two-dimensional perovskite-based heterostructures: Construction, properties and applications

Van der Waals heterostructures integrated from various two-dimensional (2D) layered materials provide fundamental building blocks for optoelectronic devices with novel functionalities, such as photovoltaic solar cells, light emitting diodes (LEDs) and photodetectors. Two-dimensio … | Continue reading


@phys.org | 1 day ago

Life in a violent country can be years shorter and much less predictable, even for those not involved in conflict

How long people live is less predictable and life expectancy for young people can be as much as 14 years shorter in violent countries compared to peaceful countries, according to a new study today from an international team, led by Oxford's Leverhulme Center for Demographic Scien … | Continue reading


@phys.org | 1 day ago

The spillover effects of rising energy prices following 2022 Russian invasion of Ukraine

Following the Russian invasion of Ukraine from February 24, 2022, energy prices rose by up to 20% worldwide for five months. WTI crude oil was $92.77 per barrel on February 24, 2022, but rose and averaged $106.96 (+15.3%) from February 28 to August 3. | Continue reading


@phys.org | 1 day ago

Signal transmission in the immune and nervous system through NEMO

A cascade of various events is required for the transmission of signals within cells. These include several modifications of proteins to switch their function on or off. In order to ensure rapid signal transmission, signaling proteins transiently accumulate at specific sites in t … | Continue reading


@phys.org | 1 day ago

Improved estimates of carbon sinks and sources of northern ecosystems

A new study shows that a calculation method used by international measurement networks creates a systematic bias in carbon balance estimates for northern ecosystems. The study, led by the Finnish Meteorological Institute, shows that a machine learning method can be used to substa … | Continue reading


@phys.org | 1 day ago

Paper explores how researchers have responsibility for the stories they request and retell

Anette Bringedal Houge uses experiences from her own research projects to discuss ethical dilemmas researchers face when working on sensitive topics. | Continue reading


@phys.org | 1 day ago

Remapping the superhighways traveled by the first Australians reveals a 10,000-year journey through the continent

New research has revealed that the process of 'peopling' the entire continent of Sahul—the combined mega continent that joined Australia with New Guinea when sea levels were much lower than today—took 10,000 years. | Continue reading


@phys.org | 1 day ago

Nano drug delivery breakthrough reveals new possibilities for the treatment of pulmonary fibrosis

A recent breakthrough publication by scientists at the Masonic Medical Research Institute have discovered a novel way of treating pulmonary fibrosis, a progressive incurable disease that results in the stiffening of the lungs through scarring, using nanoparticles. | Continue reading


@phys.org | 1 day ago

Long-delayed ExoMars mission still dreams of 2028 launch

War, budget cuts, a pandemic and a crash: For all its trials, Europe's ExoMars mission might be more deserving of the name Perseverance than NASA's Martian rover. | Continue reading


@phys.org | 1 day ago

Bird flu detected in mammals but risk to humans low: experts

Experts have warned that the recent detection of bird flu in mammals including foxes, otters, minks, seals and even grizzly bears is concerning but emphasized that the virus would have to significantly mutate to spread between humans. | Continue reading


@phys.org | 1 day ago

Outflows from baby star affect nearby star formation

Baby stars don't always play nice with their siblings. New observations show an outflow of high-speed gas from one baby star colliding with a nearby dense cloud of gas where other stars are in the process of being born. These observations clearly show the outflow from a baby star … | Continue reading


@phys.org | 1 day ago

New herb plant species found in Yunnan, China

Ceropegia is a genus of plants in the Apocynaceae family, native to Africa, southern Asia, and Australia. According to a recent phylogenetic study, Ceropegia contains more than 700 species in 63 sections. Ceropegia sect. Chionopegia is mainly distributed in the Himalaya region, P … | Continue reading


@phys.org | 1 day ago

First assessment of livestock predation risk from brown bears in Romania

Brown bear management and conservation are the core of heated debates in Romania. As the country harboring the largest population of brown bears in Europe, coexistence between bears and people has always been at the forefront of brown bear management and conservation. Livestock p … | Continue reading


@phys.org | 1 day ago

A protein structure reveals how replication of DNA coding for antibiotic resistance is initiated

In all living organisms, DNA replication is essential to ensure the genetic fidelity of the next generation. However, bacteria can also transfer genetic information horizontally to other bacteria. Many species of pathogenic bacteria have transmissible antibiotic resistance plasmi … | Continue reading


@phys.org | 1 day ago

Improving social access beyond the inner city

Improving suburban public transport access has a societal benefit through better health, increased employment and reduced crime, according to a new study from the Institute of Transport and Logistics Studies at the University of Sydney Business School. | Continue reading


@phys.org | 1 day ago

A possible strategy for a tabletop chiral attosecond laser

When molecules form from many atoms, the atoms can combine in different ways. Two forms of the same molecule can have the same composition but have different arrangements of atoms, giving rise to isomers. Some isomers may have structures that are mirror images of each other. Such … | Continue reading


@phys.org | 1 day ago

Reference epigenome reveals transcription and chromatin state reprogramming during wheat embryogenesis

Embryogenesis is one of the most fundamental and remarkable processes in both animals and plants. It's amazing that after fertilization, a single maternal egg cell can develop into an organism with a multilayered body plan only in just a few weeks. Cell fate transition is largely … | Continue reading


@phys.org | 1 day ago

Savanna plants show high physiological resilience to extreme drought

Extreme drought events can affect the physiological function and growth of plant. Understanding the physiological mechanisms of how plants respond to extreme drought is crucial for predicting plant performance under future climate change. In 2019, a valley savanna in Yuanjiang, C … | Continue reading


@phys.org | 1 day ago

AI helps scientists decipher cellular structures

To the untrained eye, a cryo-electron tomogram looks more like traces in sand than the detailed snapshot of a cell it is. | Continue reading


@phys.org | 1 day ago

Police traffic stops can alienate communities and lead to violent deaths like Tyre Nichols'—is it time to rethink them?

The killing of Tyre Nichols has raised questions about the use and risks of a routine part of U.S. policing: the traffic stop. | Continue reading


@phys.org | 1 day ago

Rocket industry could undo decades of work to save the ozone layer

The ozone layer is on track to heal within four decades, according to a recent UN report, but this progress could be undone by an upsurge in rocket launches expected during the same period. | Continue reading


@phys.org | 1 day ago

France pledges not to conduct anti-satellite missile tests but leaves other options open

Driven by concerns over space debris, in late November the French Ministry for the Armed Forces formally committed not to conduct anti-satellite missile tests. And yet, France's space strategy of 2019 resolved to "toughen" the country's space capabilities. | Continue reading


@phys.org | 1 day ago

Working for cash in hand can be a vital career step and a way out of poverty

Being paid for work in cash is often frowned upon in the UK. It can be seen as a way of avoiding tax, or cheating the system, and detrimental to economic growth. | Continue reading


@phys.org | 1 day ago

Losing the natural world comes with major risks for Australia's super funds and banks

As the economist Herman Daly pithily said, the economy is a wholly owned subsidiary of the environment—not the reverse. Nature makes our lives possible through what scientists call ecosystem services. Think healthy food, clean water, feed for livestock, building materials, medici … | Continue reading


@phys.org | 1 day ago

Remote working improves the lives of female managers, but at a cost

The COVID-19 pandemic has led to a question that would have been unthinkable a few years ago: do we really need to be in the office all the time? | Continue reading


@phys.org | 1 day ago

NASA tests new ride for science studies from Wallops

NASA will test a new capability for supporting science research in the mesosphere with the launch of two rockets from NASA's Wallops Flight Facility, Virginia on Feb. 9, 2023. The two Improved-Orion suborbital sounding rockets will launch about 30 minutes apart between 8-10 a.m. … | Continue reading


@phys.org | 1 day ago

How can we know if we're looking at habitable exo-Earths or hellish exo-Venuses?

The differences between Earth and Venus are obvious to us. One is radiant with life and adorned with glittering seas, and the other is a scorching, glowering hellhole, its volcanic surface shrouded by thick clouds and visible only with radar. But the difference wasn't always clea … | Continue reading


@phys.org | 1 day ago

Grit or quit? How to help your child develop resilience

Grit. Don't quit. | Continue reading


@phys.org | 1 day ago

Why do black holes twinkle? Study examines 5,000 star-eating behemoths to find out

Black holes are bizarre things, even by the standards of astronomers. Their mass is so great, it bends space around them so tightly that nothing can escape, even light itself. | Continue reading


@phys.org | 1 day ago

Viewpoint: Our economic future depends on young reformers, not ineffective revolutionaries

Many of our capitalist institutions have been damaged by cronyism, greed and a short-term mindset. But capitalism is more than its faults and the unpleasant outcomes brought on by a selfish class. | Continue reading


@phys.org | 1 day ago

Fossils in a northern Alberta riverbed may reveal new facts about dinosaur evolution

Alberta has been ground zero for dinosaur discoveries in Canada since the 1880s, when several Geological Survey of Canada expeditions collected dinosaur bones from the southern part of the province. | Continue reading


@phys.org | 1 day ago